import Mock from 'mockjs'
import { param2Obj } from '@/utils'
import user from './user'

const mocks = [
  ...user
]

Mock.XHR.prototype.proxy_send = Mock.XHR.prototype.send
Mock.XHR.prototype.send = function() {
  if (this.custom.xhr) {
    this.custom.xhr.withCredentials = this.withCredentials || false

    if (this.responseType) {
      this.custom.xhr.responseType = this.responseType
    }
  }
  this.proxy_send(...arguments)
}

function XHR2ExpressReqWrap(respond) {
  return function(options) {
    let result = null
    if (respond instanceof Function) {
      const { body, type, url } = options
      // https://expressjs.com/en/4x/api.html#req
      result = respond({
        method: type,
        body: JSON.parse(body),
        query: param2Obj(url)
      })
    } else {
      result = respond
    }
    return Mock.mock(result)
  }
}

for (const i of mocks) {
  Mock.mock(new RegExp(i.url), i.type || 'get', XHR2ExpressReqWrap(i.response))
}

// for mock server
const responseFake = (url, type, respond) => {
  return {
    url: new RegExp(`/mock${url}`),
    type: type || 'get',
    response(req, res) {
      res.json(Mock.mock(respond instanceof Function ? respond(req, res) : respond))
    }
  }
}

export default mocks.map(route => {
  return responseFake(route.url, route.type, route.response)
})
